perky



Dec. 22, 1925.

i ROLL Filed May 27. 1922 Ti --v1 Patented Dec. 22, 1.925.

N UNiTEDfs`TATEs '1,556,711 PATE-NTI lortica SCOTT H. PERKY, OF SUMMIT, NEW JERSEY.

ROLL.

Application filed May 27, 1922. Serial No. 564,116.

To all whom t ymay concern:

Be it known tha't I, SCOTT H. Fnnnr, a citizen of lthe United States, reslding at Summit7 in the county of Union and Sta-te of New Jersey, have invented certain new and useful Improvements in Rolls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. j

My invention relates to rolls.

Among the objectsof my invention are :--v

To provide a. roll suitable for use in preparing material in ribbon form andproviding same with cross bars or other figures.

To vprovide a roll capable of rolling a ribbon of plastic material and producing thereupon embossed figures, cross bars or interstices and combining with the rolls a comb tol insure the effective. delivery of the rib-v bon without fracture of any part thereof.

These and other objects of my invention will be explained'in the following speeifica- Fig. 8 shows a variation .thatl may be' made in the grooves in the rolls.

Fig. 4 is a transverse section through `the centre of one vof the grooves 13 inorder to show the'manner in which the rolled material is removed from the roll 11.

Fig. 5 is a fragmentary view of the ribbon formed by my improved rolls, viewed from the side away from they roll.

5 represents the bed plate of the machine upon which bearings such as 6 and 7 are mounted and in these bearings revolve the' pintles 8 and 9 ofjthe rolls 10 and 11, respectively. 4

It is to be understood that the roll 10 is cylindrical in shape and that it is provided at the end opposite to that shown in Fig. 1 with a pintle similar to 8 which revolves rolls 10 and 1'1 may be varied.

by which the position of the bearing' is A g or curved in any way"l v The flanges 15 between the grooves 13 are each provided with a plurality of virregularly in bearings similar to 6 that is likewisev secured to the base 5.

Similarly the roll 11 is provided at the end opposite to that shown in Fig. 1V with a lpintle similar to 9 that revolves in? abearing similar to 7 that is likewise secured to the base 5. 'f

The roll 1l is to be revolved in any approved manner by any approvedv source of power and the vroll 10 vis to beeither re-y volved by its contact with the roll 11er if the roll 10 is placed -at-a distance from the roll 11, then the roll 10 is to be driven from the roll 11 yby any approved mechanism.

It is to fbe' understood that the bea-ring 6V is movable with reference to the bearing 7 1n order that the relative positions `of the adjusted may be varied asf-desired.` g

"A hopper 12 is supported in any approved manner in proper relation to the rolls 10 and 11 to receive between said rolls. j

The roll 11 is pro-vided with a plurality of grooves such as 13,l the bottoms of which may be straight, as shown in Fig. 2, or curved as shown inFig; 3.- The bottoms ofthe grooves 13 may be made inany shape 'desired and the widthof said grooves may be varied. Said grooves may haveparallel sides such as 14 or the sides may be sloping or equi-angularly' disposed recessessuch as A comb support 17 isfsecured upouthe'base 5 anda plurality of comb teeth such as 18,

one for each groove-13,issecured upon the '7 support 17. The top of the support 17 is a plane yforming the proper angle .with the base 5` in order to hold the teeth 18 in the proper position to remove the ribbon 19 from lthe roll 11.

' When the upper surfaces of the'support 17 is a plane as just described, then the recesses 16 will be in alignment as shown in Fig. 2. It i's to be understoody however, that a curve or V'other shape may be provided in lieu ofthe plane at thel topof the support 17 and the teeth 18 will follow the contour of said curve or other shape.

The means lmaterial and deliver same Ineither ofv ythese cases, therecesses 16fare to be located in the various lianges 15 so that they will reach the points of the teeth 18 simultaneously when the roll 11 is .revolving in the direction of the arrow 2O in Fig. 1.

The recesses 16 are shown as formed by mutually obliquely disposed surfaces 21 and 22. Y

.The ribbon 19 formed by my improved rolls has a plurality of lengthwise disposed ribs such as 23 joined together by a plurality of transversely disposed ribs such as 24. It is to be understood that 'when the roll 10 is in contact with the roll 11, interstices will exist between these ribs. When, however, these rolls areseparated, then the ribbon will consist of a body havingvi'aised ribs thereupon. i u

The operation of my improved i'oll is as follows The material being introduced within the hopper 12 it passes between the rolls 1 0 and 11, is reduced toa plastic condition and formed into. axsheet. which, owing to the greater surface exposed'by lthe' roll 11,` adheres thereto and is carried around upon said roll as shown in .Fig4r untilit encounters'thef ends ofthe teeth 18 which force the u ribbon 19 from the roll 11. v

. As the ribbon 19 is forced from theroll 11 the cross ribs 24 move along an involute curve and vthefollowing surfaces 22 of :the recesses. 16 are so disposed that duringsaid motion the rib 24 willnot be broken by the surface 22.V vThe surfaces 22 are, therefore,

to be made either in the form of aninvolute curve, ora curvefliaving a Vlessv radius of curvature, ,or aplane surface vthat willbe entirely within the-involute curve. fBy this construction, I in'sureythat ,the` surfaces 22 will n-ot fracture the cross ribs 24.

While I havesho'wn the surfaces 21 and 22 fas mutuallyinclined planes, it is to be understood that any suitable shapes may be used instead of the surfaces 21 and 22, the requirements being that the latter surfaces be so` disposed as-not to. fracture the cross ribs 24.' j y The recessesV 1G may extend to the saine depth as-the grooves 13V or to any vless .dis-

tance. Itis desirable V.that the recesses 16 do not'extend beyond the. bottoms of the groovesl, for iirthis case, theribbon cannot be -as'i'eadily removed from the rcill 11 as hereinabove explained.

In -order to r,produce an yextremely crisp and friable food product, it isidesirable toV have the recesses 16 more lcapacious than' the .grooves 13, forthefreason that the material will enter the recesses 16 from kthe hopper 12- more readily 4than it enters the grooves 13 and the roll10 .will ythen vsubject the material in the recesses 16 to a Vgreater pressure than the magerial in the grooves 13, for it will force the excess material lfrom the recesses 16 into the grooves 13. Thus, there willbe planes of cleavage between the ma terial in the recesses and the material in the groove, and said material will readily break into granules when being masticated. Furthermore, these planes of cleavage render the crispness of my product permanent.

While I have shown one embodiment ofV my invention for purposes lof illustration, it is to be understood that the invention is not to be limited thereto, for many changes may be made vinthe structure shown'withoutdeparting from the spirit .of my invention.

1. A roll comprising a plurality of flanges, said flanges having recesses formed therein,

the following surfaces of said recesses being within an involute curve.

2. The combination with a roll colllprising a plurality of anges, of'a comb having a f plurality of teeth, onel tooth .extending between each pair of adjacent flanges and i'ecessesformed in saidflanges, the-following surfacesr of said recessesbeing within an linvolute curve.

y3. `The combinationwith a roll lcomprising aplurality of fianges,ineans for feeding' material to said roll and cooperating mecli. l

anismrfor forming said material. into theV form offa ribbon adhering to said roll, said flanges comprisingv recesses for yforming cross .ribs Von said ribbon, of means for .removing said ribbon from said roll, ,the following.,

lsurfaces of said recesses being withinan involute, curve whereby the deformation of said ribs duringtheremoval ofsaid ribbon from said roll is avoided.

4. The combination .with arloll 'compris-a;

ing a plurality of flanges-means 'forfeediiig materialtosaid roll and cooperating-mechanism for forming said material into Ithe.

"form of a ribbon adhering to said roll, said flangesconiprising recesses for forming cross ribs I.on said iibbon,of means forrcn'ioving said ribbon from said roll, said mean-s .com-

prising comb teeth extending .between said In testimony whereof-1I affix my signature.

seorr H. riiRKY. 

